Not one to be afraid of showing off her body, Kourtney Kardashianrecently shared a few never-before-seen topless photos from a mermaid themed photo shoot she shot way back when she was pregnant with her first child, Mason Disick. According to the mom-of-three, the spread, which also featured half-naked sisters Khloé and Kim Kardashian, was for a coffee table book that never got published.

“We all love mermaids in our family, which is why we posed for this coffee table book that turned people into mermaids! I was pregnant with Mason when we did this shoot, which makes me love these images even more,” Kourtney wrote on her app. “I love our purple mermaid eyeshadow and long mermaid hair (my hair was actually that long at the time!) we did for the shoot.”

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Khloé also posted a few behind-the-scenes shots, writing on her own website, “These pictures have never seen the light of day! There was a coffee-table book we were supposed to be in, so we did this shoot, but unfortunately the book never happened.”